INS and type 2 diabetes mellitus: Subgroup analysis of individuals who are obese (g = -0.231, 95% CI = -0.492 to 0.030, p = 0.082, I2 = 38.5%) and individuals with T2D (g = 0.069, 95% CI = -0.277 to 0.416, p = 0.695, I2 = 0.0%) also showed no significant changes in insulin following aerobic exercise training.